class_docstr: Benchmarks both quantization and dequantization.
code: def forward(self, input):
      return self.op(input)
  
imports: import torch
  import torch.ao.nn.quantized
  import torch.ao.quantization
  import torch.nn
  import operator_benchmark
label_desc: Use image node_id 2 for calling the QuantizePerTensorBenchmark obj's underlying member method code with example usage: obj.forward(input) and returns: self